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Demuxing MKV Audio with Mplayer Question - VideoHelp Forum
https://forum.videohelp.com/threads/283463-Demuxing-MKV-Audio-with-Mplayer-Question
mencoder.exe "C:\input.mkv" -ovc lavc -lavcopts vcodec=mpeg4:vqscale=2:mbd=2:trell -nosound -ofps 23.976 -o "C:\output.avi" For audio demux ffmpeg .exe -i "C:\input.mkv" -map 0:1 -vn -ab 128K -ar 48000 -ac 2 -acodec ac3 "C:\output.ac3"
[Ffmpeg-user] demux ts in one operation to keep audio ...
https://ffmpeg-user.ffmpeg.narkive.com/dDwN7uNd/demux-ts-in-one-operation-to-keep-audio-video-sync
of sync. Is there a way I can use ffmpeg, or mencoder or mplayer to demux a transport stream in one operation and keep the video in sync with the audio? I know how to run the commands separately twice, once for audio and once for video, but this leads to bad sync at the beginning of the files, and very very bad sync at the end of the file.
7.7. Using MEncoder to create QuickTime-compatible files
http://www.mplayerhq.hu/DOCS/HTML/en/menc-feat-quicktime-7.html
First, demux the AVI into separate audio and video streams using MPlayer . mplayer narnia.avi -dumpaudio -dumpfile narnia.aac mplayer narnia.avi -dumpvideo -dumpfile narnia.h264. The file names are important; mp4creator requires that AAC audio streams be named .aac and H.264 video streams be named .h264 .
MEncoder - LinuxTVWiki
https://www.linuxtv.org/wiki/index.php/MEncoder
$ mencoder -ovc copy -oac copy -o stream.ts dvb://"STREAM NAME" This will copy the video (-ovc) and audio (-oac) streams to the file stream.ts. Transcoding the file to XviD. An MPEG-TS dump of a DVB stream is extremely large (~1GB for 30 minutes). MEncoder will also allow you to transcode the stream dump into something more useful, like XviD.
bash - How to demux audio and know what type it is? - Unix ...
https://unix.stackexchange.com/questions/27475/how-to-demux-audio-and-know-what-type-it-is
When muxing an audio into a video, ffmpeg, mencoder, etc require to know what the audio's encoding is. The encoder typically uses the file name's extension as the "parameter". eg. .aac However, when the audio to be muxed is being demuxed from another video, how can I determine the encoding type in a script?
mencoder(1): movie encoder - Linux man page
https://linux.die.net/man/1/mencoder
It encodes to MPEG-4 (DivX/Xvid), one of the libavcodec codecs and PCM/MP3/VBRMP3 audio in 1, 2 or 3 passes. Furthermore it has stream copying abilities, a powerful filter system (crop, expand, flip, postprocess, rotate, scale, noise, RGB/YUV conversion) and more. gmplayer is MPlayer with a graphical user interface.
mencoder in.wav -o out.wav -of lavf -oac lavc -lavcopts ...
https://pastebin.com/nnWHAnVy
mencoder in.wav -o out.wav -of lavf -oac lavc -lavcopts acodec=pcm_u8 -v MEncoder 1.2.1 (Debian), built with gcc-5.3.1 (C) 2000-2016 MPlayer Team ... demux_audio: audio data 0x2C - 0x1B83 Audio only file format detected. Video stream is mandatory!
7.1. Making a high quality MPEG-4 ("DivX") rip of a DVD …
https://mplayerhq.hu/DOCS/HTML/en/menc-feat-dvd-mpeg4.html
MEncoder is currently only able to natively output audio and video into MPEG and AVI container formats. for example: mencoder -oac copy -ovc copy -o output_movie.avi \ -audiofile input_audio.mp2 input_video.avi. This would merge the video file input_video.avi and the audio file input_audio.mp2 into the AVI file output_movie.avi. This command works with MPEG-1 layer I, …
How to convert AVCHD with MediaCoder | Inside & Outside ...
http://blog.mediacoderhq.com/how-to-convert-avchd-with-mediacoder/
When a demuxer is enabled, it will demux input file into separate audio and video raw streams and then let audio and video source to process them and decode. This is useful for let some decoder (like the newly added JM H.264 decoder) which is not able to demux files to work with most file formats.
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